Management of a first time anterior shoulder dislocation: the decision-making process of a surgeon.

Background: Management of a first-time anterior shoulder dislocation in young and active patients remains a topic of ongoing debate. This study aims to use choice-based conjoint analysis to identify the factors influencing a surgeon's decision-making process and explore potential heterogeneity in the identified decision patterns.

Methods: A discrete choice experiment was conducted among all 94 members of the Belgian Elbow and Shoulder Society.

Muscle activation variability in relation to functional internal rotation in reverse total shoulder arthroplasty.

Background: The use of reverse total shoulder arthroplasty (rTSA) has increased in recent years, thanks to its application versatility. Despite this increase, there exists a significant variability in postoperative functional internal rotation (fIR), affecting patients' daily life independence. Previous literature investigated patient-related, kinematical, and surgical parameters to understand the variability in fIR outcome.

Biplanar radiography for in-vivo assessment of six degrees of freedom glenohumeral kinematics in shoulder osteoarthritis: an intra- and inter-observer reliability study.

Glenohumeral osteoarthritis affects glenohumeral kinematics, but these changes in functional arm positions during upright-standing remain poorly documented. We aimed to explore the use of a biplanar radiography-based methodology for semi-static three-dimensional reconstructions of six degrees of freedom glenohumeral kinematics and to document its reliability for patients with osteoarthritis. Using computed tomography images of ten patinets with glenohumeral osteoarthritis, three-dimensional models of the humerus and scapula were reconstructed, and their anatomic coordinate systems were defined.

Covariation between rotator cuff muscle quality and shoulder morphometric bony features in B-glenoids: a statistical modeling approach.

Rotator cuff muscle (RCM) degeneration, bone morphology, and humeral head subluxation (HHS) are known risk factors for failure of anatomic total shoulder arthroplasty in patients with B-glenoid shoulder osteoarthritis. Yet, the understanding of RCM asymmetry in these patients remains an area of active investigation, including its relation with other risk factors. We therefore aimed to characterize the variability of RCM degeneration in B-glenoids and analyze its covariation with scapular morphology and HHS.

Long-term outcomes of arthroscopic Bankart repair: risk of recurrence and osteoarthritis at 11-20 years of follow-up.

Background: Arthroscopic Bankart repair (ABR) is a commonly performed treatment for anterior shoulder instability. Risk factors for recurrence of dislocation after this procedure have been investigated previously at short- and mid-term follow-up. Recurrence of dislocation in the long term, as well as the incidence and risk factors for the development of osteoarthritis (OA) after this procedure require further investigation.

Association of rotator cuff degeneration and scapular anatomy with humeral head migration in rotator cuff arthropathy.

Purpose: Rotator cuff tear arthropathy (RCTA) is characterised by humeral head migration (HHM). The exact pathogenesis of HHM is poorly understood, although rotator cuff (RC) failure and scapular anatomy are thought to play an important role. The aim of this study is to investigate the possible association between HHM and the quantitative aspects of scapular anatomy and RC degeneration.

The Clinical Efficacy of the Regeneten Bioinductive Implant in Rotator Cuff Repair: A Systematic Review.

Despite advancements in surgical techniques for rotator cuff repair, retear rates remain a significant concern. This study systematically reviews the evidence on the effectiveness of the Regeneten Bioinductive Implant in improving healing outcomes. A systematic review of the literature was conducted by searching on PubMed, Embase, Web of Science Core Collection and Cochrane Library.

Covariations between scapular shape and bone density in B-glenoids: A statistical shape and density modeling-approach.

B-type glenoids are characterized by posterior humeral head migration and/or bony-erosion-induced glenoid retroversion. Patients with this type of osteoarthritic glenoids are known to be at increased risk of glenoid component loosening after anatomic total shoulder arthroplasty (aTSA). One of the main challenges in B glenoid surgical planning is to find a balance between correcting the bony shape and maintaining the quality of the bone support.

The role of sonication in the diagnosis of periprosthetic joint infection in total shoulder arthroplasty.

An increased sensitivity of sonication compared to periprosthetic tissue cultures in the diagnosis of periprosthetic joint infection (PJI) of hip and knee arthroplasty has been reported. The goal of this study was to determine if there is also an added value of implant sonication in the diagnosis of PJI in total shoulder arthroplasty (TSA). A retrospective analysis of patients who underwent removal of their TSA combined with sonication of the implant for suspicion of PJI between April 2009 and August 2017 was performed.

Management of irreparable subscapularis tears: Current concepts.

Primary repair of acute subscapularis (SSC) tears provides excellent results, but tendon retraction, muscle atrophy, fatty infiltration, and humeral head migration may render a more chronic tear irreparable. These irreparable SSC tears present a diagnostic and treatment challenge for orthopaedic surgeons. Careful physical examination and imaging evaluation can help to distinguish those with reparable versus irreparable tears, but they are still not very reliable due to the methodological limitations of current evidence.

Quantitative statistical shape model-based analysis of humeral head migration, Part 2: Shoulder osteoarthritis.

We wanted to investigate the quantitative characteristics of humeral head migration (HHM) in shoulder osteoarthritis (OA) and their possible associations with scapular morphology. We quantified CT-scan-based-HHM in 122 patients with a combination of automated 3D scapulohumeral migration (=HHM with respect to the scapula) and glenohumeral migration (=HHM with respect to the glenoid) measurements. We divided OA patients in Group 1 (without HHM), Group 2a (anterior HHM) and Group 2b (posterior HHM).

Quantitative SSM-based analysis of humeral head migration in rotator cuff tear arthropathy patients.

Rotator cuff tear arthropathy (RCTA) is characterized by massive rotator cuff tearing combined with humeral head migration (HHM). The aim of this study is to investigate the quantitative characteristics of this migration and its association with glenoid erosions and prearthropathy scapular anatomy. We quantified HHM and prearthropathy scapular anatomy of 64 RCTA patients with statistical shape modeling-based techniques.

The outcome of hydrodilation in frozen shoulder patients and the relationship with kinesiophobia, depression, and anxiety.

Purpose: The aims of this study were to (1) investigate the effect of hydrodilatation in frozen shoulder patients on objective indices of shoulder functionality and subjective outcomes of pain, mobility, kinesiophobia, depression, and anxiety, and (2) progress knowledge about the reciprocal temporal relationship between psychological parameters at baseline and objective and subjective outcomes at 3-month follow-up.

Methods: We evaluated the clinical and psychological status of 72 patients with a frozen shoulder before and after hydrodilatation, using the Constant Murley score, the Visual Analogue score, the Tampa Scale for Kinesiophobia, the Hospital Anxiety and Depression Scale, and the Shoulder Pain And Disability Index.

Results: We noted a significant improvement in functionality, pain and disability (p < .

Management of periprosthetic infection after reverse shoulder arthroplasty.

Background: Periprosthetic shoulder infection (PSI) remains a devastating complication after reverse shoulder arthroplasty (RSA). Currently, scientific data related to the management of PSI are limited, and the optimal strategy and related clinical outcomes remain unclear. Guidelines from the Infectious Diseases Society of America for the management of periprosthetic joint infection are mainly based on data from patients after hip and knee arthroplasty.

Determination of predisposing scapular anatomy with a statistical shape model-Part II: shoulder osteoarthritis.

Hypothesis And Background: Shoulder osteoarthritis can be divided into different glenoid types (A, B, C, and D) and subtypes. The aim of this study was to investigate if there is an association between the prearthropathy scapular anatomy, shoulder osteoarthritis, and different glenoid types and subtypes.

Methods: Using principal components analysis, a statistical shape model (SSM) of the scapula was constructed from a data set of 110 computed tomographic (CT) scans.

Determination of pre-arthropathy scapular anatomy with a statistical shape model: part I-rotator cuff tear arthropathy.

Hypothesis And Background: Rotator cuff tear arthropathy (RCTA) is a pathology characterized by a massive rotator cuff tear combined with acromiohumeral and/or glenohumeral arthritis. The severity of RCTA can be staged according to the Hamada classification. Why RCTA develops in some patients is unknown.

How much bone support does an anatomic glenoid component need?

Background: An important reason for failure of anatomic total shoulder arthroplasty is glenoid component loosening. We investigated the effect of backside bone support on the risk of failure of a glenoid component.

Methods: A finite element model was developed.

Automated quantification of glenoid bone defects using 3-dimensional measurements.

Background: Assessment of glenoid bone defects is important to select the optimal glenoid component design during shoulder arthroplasty planning and implantation. This study presents a fully automated method to describe glenoid bone loss using 3-dimensional measurements without the need for a healthy contralateral reference scapula.

Methods: The native shape of the glenoid is reconstructed by fitting a statistical shape model (SSM) of the scapula.

Treatment of severe glenoid deficiencies in reverse shoulder arthroplasty: the Glenius Glenoid Reconstruction System experience.

Background: The treatment of glenoid bone deficiencies in primary or revision total shoulder arthroplasty is challenging. This retrospective study evaluated the short-term clinical and radiologic results of a new custom-made patient-specific glenoid implant.

Methods: We treated 10 patients with severe glenoid deficiencies with the Glenius Glenoid Reconstruction System (Materialise NV, Leuven, Belgium).

Can the contralateral scapula be used as a reliable template to reconstruct the eroded scapula during shoulder arthroplasty?

Hypothesis: The contralateral scapula can be used as a reliable template to determine scapular offset, glenoid inclination, and version of the native scapula in view of reconstructing pathologic scapulae.

Methods: Three-dimensional measurements of scapular offset, inclination, and version were performed using data from a set of 50 bilateral computed tomography scans of full scapulae to determine direct side-to-side differences.

Results: The scapula pairs had a mean bilateral difference of 2 mm in offset, 2° in inclination, and 2° in version.

Arthroscopic Removal of Rotator Cuff Calcifications: Operative Technique.

Introduction: In this article, we present our operative technique for the removal of rotator cuff calcifications.

Step 1 Setup And Patient Positioning: Perform the shoulder arthroscopy with the patient in the beach-chair position with a shoulder positioner.

Step 2 Glenohumeral Inspection: Perform an arthroscopic inspection of the glenohumeral joint to exclude concomitant lesions.

Rotator cuff healing after needling of a calcific deposit using platelet-rich plasma augmentation: a randomized, prospective clinical trial.

Background: Arthroscopic needling of a rotator cuff calcification is a highly reliable operation in terms of pain relief and return of function. However, during the needling process, a cuff defect is created. Little is known about the evolution of this defect.

Carpal malalignment in malunion of the distal radius and the effect of corrective osteotomy.

Introduction Malunions of the distal radius often induce carpal malalignment. Two different types can be distinguished: an adaptive midcarpal malalignment (so-called CIA wrist: carpal instability, adaptive) and a radiocarpal malalignment (dorsal translation of the whole carpus). The effect of distal radial osteotomy on the carpal alignment has hardly been studied.

Chronic anterior shoulder dislocation: aspects of current management and potential complications.

Chronic unreduced anterior dislocations of the shoulder are rare. Arterial and neurological complications in chronic glenohumeral dislocations are even less frequent. We report three cases of old anterior shoulder dislocations.

Are clinical photographs appropriate to determine the maximal range of motion of the knee?

Goniometry is a commonly used method for the clinical assessment of range of motion (ROM) of the knee. A digital photograph of the knee in maximal flexion and extension could provide a more objective way to assess the ROM. The aim of our study was to investigate the reliability of the use of digital photographs as a method for measuring the ROM of the knee.